Earth. It’s now a small world. The human race is connected better and faster than ever before, but what about elsewhere? Could we one day be part of a galactic community sharing our knowledge and ideas? Or is Earth the only planet with life? To hunt for life elsewhere in the universe, scientists have long been conducting research based on an understanding of life on Earth. The journey in “We are Aliens” will explore the most likely havens of life, starting from neighbouring worlds such as Mars and Europa and continuing through to other planetary systems beyond our solar system. Perhaps one day we may finally connect with a vast network of intelligent civilisations scattered among the stars. They would no longer be aliens but neighbours in the universe.